武汉天河机场新航站楼预应力混凝土结构设计

Prestressed concrete structure design of new navigation building in extension project of Wuhan Tianhe airport

武汉天河机场新航站楼设计中,采用后张有(无)粘结预应力混凝土技术有效解决了主体结构大空间、大跨度、相邻变跨度、大跨度悬挑和超大平面未设温度变形缝等关键技术问题,介绍了其预应力混凝土梁的计算分析和配筋设计,以及无粘结预应力地下室顶板的设计。为国内类似规模建筑的楼面设计提供了成功经验。

During the design of new navigation building in extension project of Wuhan Tianhe airport, adhesive（unbonded） prestress technology is adopted to efficiently solve critical technology difficulties as large space of main structure, long span, adjacent variable spans, super-long-span cantilever and super plane without expansion joints. The calculation analysis of the prestress concrete beam, and the design of the reinforcement and the unbonded prestress basement roof are presented, which affords successful experience for floor design of domestic similar scale building.